User Manual

Publication 1398-5.0 – October 1998
11-16 Maintenance and Troubleshooting
8. Choose OK to close the Set Up window and activate the Drive
Signals window.
9. Slowly adjust the potentiometer while viewing the Drive Signals
window. The Current - Input Limit + value should update as the
potentiometer is adjusted.
Testing Negative Current Limit
1. Verify the accuracy of the potentiometer with an ohmmeter before
installing.
2. Disable the drive by opening the connections between the
ENABLE input and +24VDC.
3. Disconnect the connections to J1-29 and J1-28.
4. Connect the 10K potentiometer between J1-29 and J1-28.
Refer to “J1 – Controller” on page 6-1 for a diagram showing the
location of the pins and Figure 6.44 on page 6-45 for an intercon-
nect diagram.
5. Choose the
Drive Signals command icon from ULTRA Master.
6. Choose
S
et Up, if the Drive Signals Set Up window is not already
active.
7. Choose
Current - Input Limit – as the analog signal.
8. Choose
OK to close the Set Up window and activate the Drive
Signals window.
9. Slowly adjust the potentiometer while viewing the Drive Signals
window. The Current - Input Limit - value should update as the
potentiometer is adjusted.
If you determine that an analog input is defective, return the unit for
repair.